Let's get one thing out of the way: this manga is absolute trash
Let's start with the plot, or lack thereof. The manga essentially consists of an endless loop with these three steps:
1. Some dude, grandpa or gal underestimates MC since he's so young
2. Some dude, grandpa or gal tries to...
Quite the wish fulfillment manga here.
The story is 90% populated by women utterly devoid of any personality. They simply serve to get f*ked by the MC.
The remaining 10% are men who are either A) jealous pricks or B) bandits. I'm not exaggerating. There's not a single male character in this...